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Proceedings Paper

Novel nondestructive readout method for rewritable storage systems of diarylethene photochromic molecules
Author(s): Haobo Guo; Fushi Zhang; Yingwu Tang; Fuqun Zhao; Guo-shi Wu
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Paper Abstract

1,2-bis(2-methyl-5-(4-methoxyl-phenyl)thiophene-3- yl)perfluorocyclopentene was synthesized by the elimination reaction of perfluorocyclopentene with butyllithium. The UV- Vis absorption spectra of both the open form and the closed form were detected. Their geometries were optimized by PM3 method, and ZINDO/S CI method was employed to calculate their UV-Vis absorption spectra, which were consistent with the experiments. Three fabricated dithienylethene derivatives linked by heterocyclic pyridinium betaines were investigated by the same methods to calculate their UV-Vis absorption spectra of both the open and closed forms. The results show that reading at the wavelength above 700 nm will not destroy the recorded information. Thus a non-destructive method is constructed on these diarylethene molecules.

Paper Details

Date Published: 7 February 2001
PDF: 4 pages
Proc. SPIE 4085, Fifth International Symposium on Optical Storage (ISOS 2000), (7 February 2001); doi: 10.1117/12.416833
Show Author Affiliations
Haobo Guo, Tsinghua Univ. (China)
Fushi Zhang, Tsinghua Univ. (China)
Yingwu Tang, Tsinghua Univ. (China)
Fuqun Zhao, Tsinghua Univ. (China)
Guo-shi Wu, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 4085:
Fifth International Symposium on Optical Storage (ISOS 2000)
Fuxi Gan; Lisong Hou, Editor(s)

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